# Ocean 4D+ vs Rock Identifier

The clearest difference is update cadence: Rock Identifier at every 3 days against Ocean 4D+'s every 2 months. Ocean 4D+'s advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Ocean 4D+ sells 1 one-off in-app purchase and Rock Identifier sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Ocean 4D+ ships an update every 2 months, Rock Identifier every 3 days. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Ocean 4D+ | Rock Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ocean-4d-plus/id1484774384/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 251 MB | 13 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Octagon Studio Ltd](https://appshunter.io/developer/998405180) | [Arif OZELCI](https://appshunter.io/developer/1768734602) |

## What reviewers say

### Ocean 4D+

[App page](https://appshunter.io/ios/app/ocean-4d-plus/id1484774384)

Explore a vibrant underwater world with augmented reality. Bring marine creatures to life in your environment, interact with them, and learn fascinating facts about their habitats and conservation status.

**Highlights:** Cardless Augmented Reality, Interactive 3D marine creatures, Realistic animations, Digital Encyclopedia of marine animals, Conservation status information, Habitat and diet details

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Marine Animals | $2.99 | one-time |


### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-talus/id6785174472)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Talus Pro Weekly | $6.99 | per 7 days |
| Talus Pro Yearly | $39.99 | per year |
| Talus Pro Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Ocean 4D+ free?

Ocean 4D+ is free to download, with in-app purchases available.

### Is Rock Identifier free?

Rock Identifier is free to download, with in-app purchases available.

### Do Ocean 4D+ or Rock Identifier have ads?

Neither Ocean 4D+ nor Rock Identifier shows ads.

### Which is updated more often, Ocean 4D+ or Rock Identifier?

Ocean 4D+ ships an update every 2 months, and Rock Identifier every 3 days. Most recently, Ocean 4D+ was updated on October 12, 2026 and Rock Identifier on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*